combustible floor installation

Continued

Materials included:

•8 - ⅜" Rebar x 12" Long

•4 - ⅜” Rebar x 6” Long

•4 - ⅜” Bolts x 2½” Long

•28 - Washer

•28 - Nuts

•4 - Floor Joist Brackets

•2 - Ember Protector Strips

•1 - Insulation Blanket

A layer of 1" thick Insulation Blanket (Included) is required on the top and mid-section of the Metal Base as shown in Figure 33. The required sizes are shown in the following table:

1/2" Thick Cement

Board Dimensions

Model A1 A2

MM33 37" 28"

MM39 43" 28"

MM44 48" 28"

MM49 53" 28"

Place 1/2" cement board on top rails of platform (Not Included).

Place 1” Insulation

A1

Blanket on top of

 

cross members

A2

(Included).

 

Ember Protector Strips 26 ga. Sheet Metal

Ten (10) All-Thread Rods are secured to the top flange of the Metal Base with twenty (20) flat washers (2"OD x 9/16"ID x 0.10") and twenty (20) 1/2-13 UNC Nuts.

Anchor Bracket All-Thread Rods are secured to the bottom flange of the Metal Base with eight (8) flat washers (2”OD x 9/16”ID x 0.10") and eight (8) 1/2-13 UNC Nuts.

Figure 32 - MMB63 Metal Base Assembly

6" Metal Base (MMB33,MMB39, MMB44, and MMB49)

The Metal Base ensures the minimum 6" clearance above combustible flooring is maintained.

Grand Meridian

Use Metal Base

Model

Model

MM33

MMB33

MM39

MMB39

MM44

MMB44

MM49

MMB49

Note: The insulation (concrete) board chosen must meet a thermal conductivity rating ≥ 0.4 Btu-in/hr- ft²-F°.

Place Cement Board on top rails of platform (Not Included).

Place Insulation Blanket

A1

on top of cross-members

A2

(Included).

 

Ember Protector Strips 26 ga. Sheet Metal

Eight (8) All-Thread Rods are secured to the top flange of the Metal Base with sixteen (16) flat washers (2"OD x 9/16"ID x 0.10") and sixteen (16) 1/2"-13 UNC Nuts.

Anchor Bracket All-Thread Rods are secured to the bottom flange of the Metal Base with eight (8) flat washers (2"OD x 9/16"ID x 0.10") and eight (8) 1/2-13 UNC Nuts.

Figure 33 - MMB33, MMB39, MMB44 and MMB49

Metal Base Assembly

125160-01A

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